SET for Orchestral , Big Band etc.

I've always heard how suited SET amps are for vocals, chamber music, jazz ensembles, etc. And, I listen to this type of music a lot. Which is why I've decided to move to this type of system. However, after reading those opinions, I'm inferring that people are implicitly saying that these amps would NOT do as well for large orchestral or big band jazz music which I also listen to a lot of. Currently, when I listen to a symphonic piece and there is a large crescendo punctuated with a tripple forte accent, I can feel it with a big umpf! It's chilling. Will I hever have that with a SET system? Will I need a small sub-woofer? I thought sub-woofers were not very musical and used largely in HT setups. My new speakers will be much smaller than my current ones due to my small room (approx 11x13). Thanx for your thoughts.